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nv50/ir/tgsi: generate UCPs with actual outputs instead of SVs 

gl_ClipDistance is treated the same way, this is just nicer and
easier assign slots for them on nv50.
This commit is contained in:
Christoph Bumiller 2012-04-07 22:46:35 +02:00
parent d07e4421ab
commit ce04221081
1 changed files with 20 additions and 4 deletions
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24
src/gallium/drivers/nv50/codegen/nv50_ir_from_tgsi.cpp
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@ -700,9 +700,18 @@ bool Source::scanSource()
if (mainTempsInLMem)
info->bin.tlsSpace += (scan.file_max[TGSI_FILE_TEMPORARY] + 1) * 16;
if (info->io.genUserClip > 0)
if (info->io.genUserClip > 0) {
info->io.clipDistanceMask = (1 << info->io.genUserClip) - 1;
for (unsigned int n = 0; n < ((info->io.genUserClip + 3) / 4); ++n) {
unsigned int i = info->numOutputs++;
info->out[i].id = i;
info->out[i].sn = TGSI_SEMANTIC_CLIPDIST;
info->out[i].si = n;
info->out[i].mask = info->io.clipDistanceMask >> (n * 4);
}
}
return info->assignSlots(info) == 0;
}
@ -2234,7 +2243,7 @@ void
Converter::handleUserClipPlanes()
{
Value *res[8];
int i, c;
int n, i, c;
for (c = 0; c < 4; ++c) {
for (i = 0; i < info->io.genUserClip; ++i) {
@ -2248,8 +2257,15 @@ Converter::handleUserClipPlanes()
}
}
for (i = 0; i < info->io.genUserClip; ++i)
mkOp2(OP_WRSV, TYPE_F32, NULL, mkSysVal(SV_CLIP_DISTANCE, i), res[i]);
const int first = info->numOutputs - (info->io.genUserClip + 3) / 4;
for (i = 0; i < info->io.genUserClip; ++i) {
n = i / 4 + first;
c = i % 4;
Symbol *sym =
mkSymbol(FILE_SHADER_OUTPUT, 0, TYPE_F32, info->out[n].slot[c] * 4);
mkStore(OP_EXPORT, TYPE_F32, sym, NULL, res[i]);
}
}
void